Gentoo Archives: gentoo-announce

From: Aaron Bauman <bman@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 201908-15 ] ZNC: Privilege escalation
Date: Thu, 15 Aug 2019 16:32:15
Message-Id: 20190815155649.GJ861995@bubba.lan
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2 Gentoo Linux Security Advisory GLSA 201908-15
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: ZNC: Privilege escalation
9 Date: August 15, 2019
10 Bugs: #688152
11 ID: 201908-15
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14
15 Synopsis
16 ========
17
18 A vulnerability in ZNC allows users to escalate privileges.
19
20 Background
21 ==========
22
23 ZNC is an advanced IRC bouncer.
24
25 Affected packages
26 =================
27
28 -------------------------------------------------------------------
29 Package / Vulnerable / Unaffected
30 -------------------------------------------------------------------
31 1 net-irc/znc < 1.7.4_rc1 >= 1.7.4_rc1
32
33 Description
34 ===========
35
36 It was discovered that ZNC's "Modules.cpp" allows remote authenticated
37 non-admin users to escalate privileges.
38
39 Impact
40 ======
41
42 A remote authenticated attacker could escalate privileges and
43 subsequently execute arbitrary code or conduct a Denial of Service
44 attack.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All ZNC users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=net-irc/znc-1.7.4_rc1"
58
59 References
60 ==========
61
62 [ 1 ] CVE-2019-12816
63 https://nvd.nist.gov/vuln/detail/CVE-2019-12816
64
65 Availability
66 ============
67
68 This GLSA and any updates to it are available for viewing at
69 the Gentoo Security Website:
70
71 https://security.gentoo.org/glsa/201908-15
72
73 Concerns?
74 =========
75
76 Security is a primary focus of Gentoo Linux and ensuring the
77 confidentiality and security of our users' machines is of utmost
78 importance to us. Any security concerns should be addressed to
79 security@g.o or alternatively, you may file a bug at
80 https://bugs.gentoo.org.
81
82 License
83 =======
84
85 Copyright 2019 Gentoo Foundation, Inc; referenced text
86 belongs to its owner(s).
87
88 The contents of this document are licensed under the
89 Creative Commons - Attribution / Share Alike license.
90
91 https://creativecommons.org/licenses/by-sa/2.5

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